If the second gear turn because it is connected to the first gear why does the first gear turn

Me ! which of the following statements describes how the punic wars contributed to the development of the roman empire? a)they allowed the romans to focus more on expanding into the western mediterranean. b)they resulted in the overthrow of the roman republic and establishment of the empire. c)they marked the end of roman expansion in the mediterranean region. d) they forced the romans to reorganize their government with an emperor as ruler.

Hitler hoped the threat of would deter the u.s. from entering the war. a. japanb. genocide c. nuclear war d. war on two fronts

Who was the top of the feudal system hierarchy